Phonons in zinc-blende and wurtzite phases of GaN, AlN, and BN with the adiabatic bond-charge model

被引：55
|
作者：
Tütüncü, HM [1 ]
Srivastava, GP
机构：
[1] Sakarya Univ, Fen Edebiyat Fak, Adapazari, Turkey
[2] Univ Exeter, Sch Phys, Exeter EX4 4QL, Devon, England
来源：
PHYSICAL REVIEW B | 2000年 / 62卷 / 08期
关键词：
D O I：
10.1103/PhysRevB.62.5028
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The lattice dynamics of the zinc-blende and wurtzite phases of GaN, AlN, and BN is studied using the adiabatic bond-charge model. The resulting phonon spectra for zinc-blende GaN and AIN compare very well with ab initio calculations along symmetry directions. We discuss the effect of the internal parameter u on the A(1)(LO) and E-1(LO) modes. We also present the angle dependence of the zone-center optical-phonon modes in the wurtzite phase. The anticrossing behavior of the A(1) acoustic and E-2 optical modes is also discussed.
引用
收藏
页码：5028 / 5035
页数：8
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